BOXING—Olympic heavyweight champion TEOFILO STEVENSON stopped Jimmy Clark of Coatesville, Pa. with 23 seconds left in the third round to lead the Cuban national team to an 8-3 triumph over the U.S. in Madison Square Garden (page 82).
CHESS—Viktor Korchnoi forced world champion Anatoly Karpov to resign on the 79th move of the 29th game to win his second straight match in the world championship at Baguio City, Philippines, and narrow Karpov's lead to 5-4. Six matches wins.
PRO FOOTBALL—Winning twice in less than a week, including an upset of archrival Dallas on Monday night, Washington remained unbeaten and maintained a two-game lead over the Cowboys in the NFC East (page 30). Mark Moseley kicked three field goals and a tough Washington defense stymied the Dallas attack as the Redskins beat the Cowboys 9-5 before 55,031, among them Jimmy and Rosalynn Carter, in Washington. In Pontiac, Mich., however, the Skins themselves avoided an upset when Joe Theismann threw a 25-yard touchdown pass with 1:24 to go, giving Washington a 21-19 victory over Detroit. Dallas rebounded to beat the New York Giants 24-3. Roger Staubach threw three touchdown passes and the Giant quarterbacks were sacked eight times. The Cowboys have now played 11 quarters without surrendering a touchdown. The league's other surprise team, NFC Central leader Green Bay, defeated Chicago 24-14 to up its record to 5-1, its best start since 1966. Safety Steve Luke returned an interception 63 yards for a touchdown, and Defensive Tackle Carl Barzilauskas set up another with an interception deep in Bear territory. The Packers gained a game on both Chicago and Minnesota as Seattle, getting a 19-yard field goal from Efren Herrera with three seconds left, upset the Vikings in the Kingdome 29-28. The victory negated a brilliant performance by Fran Tarkenton, who completed 27 of 37 for 274 yards, threw two touchdown passes and ran for a third. Los Angeles and Pittsburgh both won to remain undefeated. The Rams beat San Francisco 27-10 in O.J. Simpson's return to the Los Angeles Coliseum. The Juice had 83 yards in 20 carries. Terry Bradshaw completed 13 of 18 for 231 yards and a touchdown and Rocky Bleier scored twice as the Steelers beat Atlanta 31-7. Oakland slipped into a tie with Denver for the AFC West lead. The Raiders edged Houston 21-17 when Dave Casper grabbed a three-yard Ken Stabler pass for a score with 42 seconds remaining. San Diego defeated Denver 23-0 with Don Woods running for 50 yards and a touchdown and Dan Fouts passing 14 yards to Hank Bauer for another. New England defeated Philadelphia 24-14 as Steve Grogan tossed a 58-yard touchdown pass to Stanley Morgan and Linebacker Steve Nelson recovered three fumbles. In New York, Kevin Long ran for three first-half touchdowns, and Bruce Harper returned a punt 82 yards for a TD as the Jets routed Buffalo 45-14. The Jets' 45 points were the most by an NFL club this season. Tampa Bay moved into a tie with the Vikings and the Bears for second in the NFC Central with a 30-13 victory over Kansas City; it was the Chiefs' fifth straight defeat. Cleveland defeated New Orleans 24-16 in the Superdome, and Baltimore beat winless St. Louis 30-17.
GOLF—GIL MORGAN shot a final-round one-under-par 70 for a 273 total, 11 under par, to win his second straight tournament, the $300,000 Pacific Club Masters in Gotemba, Japan by three strokes over Jerry Pate.
HARNESS RACING—DOUBLEMINT ($3.80), driven by Peter Haughton, won the final leg of trotting's Triple Crown, the $100,000 Kentucky Futurity, by 2� lengths over Way to Gain. The 3-year-old was timed in 1:58[3/5].
HORSE RACING—STRIKE YOUR COLORS ($12.60), Eddie Delahoussaye up, won the $146,475 Breeders' Futurity at Keeneland by 3� lengths over Lot O' Gold. The 2-year-old covered the seven furlongs in 1:26[1/5].
Spectacular Bid ($6.80), ridden by Jorge Velasquez, defeated General Assembly by 2� lengths in the $133,750 Champagne Stakes for 2-year-olds at Belmont. The Hawksworth Farm colt was timed in 1:34[4/5] for the mile.
Waya ($15.20), Angel Cordero Jr. riding, defeated Tiller by 1� lengths and took the $132,875 Man o'War Stakes at Belmont. The French-born 4-year-old, the only filly in the race, was clocked in 2:16[1/5] for the mile and three-eighths.
MOTOR SPORTS—Driving on Montreal's new 2.8-mile Ile Notre Dame circuit at an average speed of 99.6 mph, GILLES VILLENEUVE, in a Ferrari, became not only the first Canadian to win the Canadian Grand Prix, but also the first to win a Formula I race.
Bobby Allison, driving a Ford, averaged 141.826 mph on the Charlotte (N.C.) Motor Speedway to win the $262,775 National 500 NASCAR race by 30.2 seconds over Darrell Waltrip, in a Chevrolet.